Chimney-pot.



T. B. GULLEN.

UHIMNEY POT.

APPLICATION rum) 0017, 1907.

909,159. Patented Jan. 12. 1909.

THOMAS BARSHAM CULLEN, OF WOOLSTON, ENGLAND.

CHIMNEY-POT Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed October 7, 1907. Serial No. 396,346.

To all whom it may concern:

Be it known that I, THOMAS BARSHAM CULLEN, of No. 1 Johns road,Woolston, Southampton, England, have invented a new and usefulChimneyPot, and which will act likewise as a ventilator, beingapplicable for the ventilation of schools, churches, &c.

This invention relates to that class of chimney tops, pots or the likewherein concentric tubes are employed in such a manner that the airexterior of the pot or flue proper is admitted below the outerconcentric tube so as to create in its upward passage a suction upon theinner tube and to thereby assist in drawing the air and smoke from theflue and. to discharge the same in an upward direction.

According to the present invention, the outer tube is fixed to thebottom flange of the inner tube by stays and to the top of the innertube by stays or brackets. The stays connecting the bottom of the outertube with the flange of the inner are of suflicient length to allow ofbricks or cement being used for setting the top, and-leaves air passagesto the bottom of said outer tube, the outer tube being arranged in suchrelation to the inner tube that the inner extends within the outer toabout one-third its length.

In order that the said invention may be readily understood reference isto be had to the following description and accompanying drawing whichrepresents in vertical section a chimney pot constructed in accordancewith the present invention.

In said drawings a, represents the outer tube connected by stays b, tothe bottom flange c, of the inner tube d, which is connected at its topend by stays or brackets e, to the outer tube a. The bottom of the tubesetting of the chimney pot without interfering with the passage of airto the interior of said outer tube. The tubes may be made of anysuitable material, and may be square, oval or circular in cross section.

The air entering the bottom of the outer r tube from the exterior risesto the top thereof and in so doing sucks the air from the chimney by wayof the pipe (1, and discharges the same and with it the smoke in anupward direction.

I claim:

A chimney top embracing an outer tubular member, an inner tubularmember, brackets or arms effecting connection between said outer tubularmember intermediate of the ends thereof and the upper end of said innertubular member, said inner tubular member extending into and terminatingat its upper end some distance from the lower end of said outer tubularmember and spaced off from the latter, said inner tubular member alsohaving a lateral flange at the lowerend formed in continuation thereof,said outer tubular member having its lower end arranged some distanceabove the corresponding end of said inner tubular member, and supportingmeans for the lower end of said outer tubular member resting upon saidlateral flange of said inner tubular member.

THOMAS BARSHAM CULLEN.

Witnesses:

R. J ONES, HARVEY J. BAvERsTooK.

